What is the largest living structure on Earth?
a) Amazon Rainforest
b) Great Wall of China
c) Great Barrier Reef
d) Sahara Desert
Answer: c) Great Barrier Reef
Which Australian state is home to the Great Barrier Reef?
a) New South Wales
b) Queensland
c) Victoria
d) Western Australia
Answer: b) Queensland
Approximately how long is the Great Barrier Reef?
a) 500 kilometers
b) 1,500 kilometers
c) 2,500 kilometers
d) 4,000 kilometers
Answer: d) 4,000 kilometers
What causes the vibrant colors of the Great Barrier Reef?
a) Pollution
b) Coral bleaching
c) Algae growth
d) Symbiotic relationship between coral and algae
Answer: d) Symbiotic relationship between coral and algae
Which type of animal is NOT commonly found in the Great Barrier Reef?
a) Clownfish
b) Sea turtles
c) Penguins
d) Sharks
Answer: c) Penguins
What is the primary threat to the Great Barrier Reef’s ecosystem?
a) Overfishing
b) Climate change
c) Coastal development
d) Oil spills
Answer: b) Climate change
The Great Barrier Reef is composed mainly of what?
a) Rocks
b) Sand
c) Coral
d) Seaweed
Answer: c) Coral
What is the name of the world’s first coral reef system discovered in the Great Barrier Reef?
a) Ribbon Reef
b) Swains Reef
c) Heron Island
d) Pandora Reef
Answer: a) Ribbon Reef
What year was the Great Barrier Reef listed as a UNESCO World Heritage Site?
a) 1969
b) 1975
c) 1981
d) 1990
Answer: c) 1981
What is the name of the giant clam species found in the Great Barrier Reef?
a) Tiger Clam
b) Blue Clam
c) Giant Pacific Clam
d) Tridacna Gigas
Answer: d) Tridacna Gigas
How many species of coral are found in the Great Barrier Reef?
a) Over 500
b) Around 800
c) Approximately 1,500
d) Over 2,000
Answer: b) Around 800
What is the name of the marine park authority that manages the Great Barrier Reef?
a) Coral Conservation Authority
b) Barrier Reef Protection Agency
c) Great Barrier Reef Marine Park Authority
d) Ocean Preservation Committee
Answer: c) Great Barrier Reef Marine Park Authority
What percentage of the world’s reef fish species are found in the Great Barrier Reef?
a) About 10%
b) Around 25%
c) Approximately 50%
d) Over 75%
Answer: c) Approximately 50%
Which of the following is NOT a threat to the Great Barrier Reef?
a) Coral bleaching
b) Overfishing
c) Pollution
d) Acid rain
Answer: d) Acid rain
What is the largest island in the Great Barrier Reef?
a) Lady Elliot Island
b) Bedarra Island
c) Whitsunday Island
d) Lizard Island
Answer: c) Whitsunday Island
What is the name of the phenomenon where corals expel the algae living in their tissues?
a) Coral retreat
b) Algal expulsion
c) Coral whitening
d) Coral bleaching
Answer: d) Coral bleaching
What is the approximate age of the Great Barrier Reef?
a) 500 years old
b) 5,000 years old
c) 25,000 years old
d) 500,000 years old
Answer: c) 25,000 years old
What is the main factor responsible for coral bleaching?
a) Pollution
b) Global warming
c) Overfishing
d) Volcanic eruptions
Answer: b) Global warming
Which of these is NOT a type of reef found in the Great Barrier Reef ecosystem?
a) Atoll
b) Fringing reef
c) Estuarine reef
d) Barrier reef
Answer: c) Estuarine reef
What is the main cause of coral bleaching in the Great Barrier Reef?
a) Excessive sunlight
b) Decrease in water temperature
c) Increase in water temperature
d) Strong ocean currents
Answer: c) Increase in water temperature
Which is the largest species of sea turtle found in the Great Barrier Reef?
a) Loggerhead turtle
b) Green sea turtle
c) Leatherback turtle
d) Hawksbill turtle
Answer: c) Leatherback turtle
What is the name of the stretch of water between the Great Barrier Reef and the Australian mainland?
a) Coral Sea
b) Pacific Strait
c) Barrier Channel
d) Reef Passage
Answer: a) Coral Sea
How many islands are part of the Great Barrier Reef?
a) Over 100
b) Around 200
c) Approximately 500
d) Over 1,000
Answer: d) Over 1,000
What is the process called when a coral reef grows to the surface of the ocean and forms islands?
a) Coralization
b) Islandation
c) Atoll formation
d) Reclamation
Answer: c) Atoll formation
Which of these creatures is known for its unique relationship with sea anemones in the Great Barrier Reef?
a) Octopus
b) Clownfish
c) Cuttlefish
d) Moray eel
Answer: b) Clownfish
Which city serves as a popular gateway to the Great Barrier Reef?
a) Sydney
b) Melbourne
c) Cairns
d) Brisbane
Answer: c) Cairns
What is the name of the Great Barrier Reef’s southernmost point?
a) Capricorn Channel
b) Swains Reef
c) Hardy Reef
d) Swain Reefs
Answer: a) Capricorn Channel
What is the primary source of food for many marine animals in the Great Barrier Reef?
a) Plankton
b) Seaweed
c) Small fish
d) Coral polyps
Answer: a) Plankton
Which of the following is NOT a type of coral found in the Great Barrier Reef?
a) Brain coral
b) Staghorn coral
c) Fire coral
d) Conch coral
Answer: d) Conch coral
Which of the following sea creatures is known for its ability to change color and texture to camouflage itself?
a) Seahorse
b) Cuttlefish
c) Jellyfish
d) Starfish
Answer: b) Cuttlefish
What is the depth range of the Great Barrier Reef?
a) 10 to 20 meters
b) 30 to 50 meters
c) 50 to 100 meters
d) 100 to 200 meters
Answer: c) 50 to 100 meters
What is the name of the phenomenon where coral larvae settle and grow on a hard surface?
a) Coral settlement
b) Coral propagation
c) Coral spawning
d) Coral recruitment
Answer: d) Coral recruitment
Which of these statements about the Great Barrier Reef is true?
a) It is the only reef system in Australia
b) It’s visible from space
c) It has no restrictions on diving and snorkeling
d) It has only one access point for tourists
Answer: b) It’s visible from space
What is the name of the unique structure formed due to the natural erosion of the reef?
a) Coral Caves
b) Coral Bridges
c) Coral Lagoons
d) Coral Bommies
Answer: d) Coral Bommies
Which of these is NOT a common activity for tourists visiting the Great Barrier Reef?
a) Snorkeling
b) Skydiving
c) Scuba diving
d) Glass-bottom boat tours
Answer: b) Skydiving
What is the name of the underwater observatory in the Great Barrier Reef?
a) Reef Haven
b) Reef World
c) Reef Base
d) Reef HQ
Answer: d) Reef HQ
What is the estimated economic value of the Great Barrier Reef to Australia?
a) $1 billion
b) $6 billion
c) $10 billion
d) $20 billion
Answer: d) $20 billion
What type of shark is commonly found in the Great Barrier Reef?
a) Great White Shark
b) Hammerhead Shark
c) Bull Shark
d) Tiger Shark
Answer: b) Hammerhead Shark
What is the approximate number of islands that are part of the Whitsunday Islands group in the Great Barrier Reef?
a) 10
b) 50
c) 74
d) 100
Answer: c) 74
What is the primary reason behind the strict regulations and conservation efforts in the Great Barrier Reef?
a) Preservation of marine life
b) Promotion of tourism
c) Economic development
d) Cultural heritage
Answer: a) Preservation of marine life
